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import { assigned } from '../utils/helpers'; |
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enum BrowserApi { |
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Unknown, |
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Chromium, |
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Firefox, |
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} |
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export type ConfigurationStorageBooleanCallback = (value: boolean) => void; |
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export interface ICustomBrowserStorageProvider { |
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setDataAsBoolean(key: string, value: boolean): void; |
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getDataAsBoolean(key: string, defaultValue: boolean, callback: ConfigurationStorageBooleanCallback): void; |
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} |
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class StorageProviderChromium implements ICustomBrowserStorageProvider { |
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setDataAsBoolean(key: string, value: boolean): void { |
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let obj = {}; |
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obj[key] = value; |
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this.getStorage().set(obj); |
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} |
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getDataAsBoolean(key: string, defaultValue: boolean, callback: ConfigurationStorageBooleanCallback): void { |
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this.getStorage().get(key, items => { |
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if (assigned(items) && assigned(items[key])) { |
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callback(items[key]); |
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} |
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else { |
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callback(defaultValue); |
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} |
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}) |
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} |
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private getStorage(): chrome.storage.StorageArea { |
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if (assigned(chrome.storage.sync)) { |
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return chrome.storage.sync; |
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} |
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return chrome.storage.local; |
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} |
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} |
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class StorageProviderFirefox implements ICustomBrowserStorageProvider { |
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setDataAsBoolean(key: string, value: boolean): void { |
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let obj = {}; |
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obj[key] = value; |
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this.getStorage().set(obj); |
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} |
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getDataAsBoolean(key: string, defaultValue: boolean, callback: ConfigurationStorageBooleanCallback): void { |
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let promise = this.getStorage().get(key); |
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promise.then(items => { |
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if (assigned(items) && assigned(items[key])) { |
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callback(items[key] as boolean); |
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} |
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else { |
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callback(defaultValue); |
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} |
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}); |
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} |
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private getStorage(): browser.storage.StorageArea { |
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if (assigned(browser.storage.sync)) { |
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return browser.storage.sync; |
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} |
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return browser.storage.local; |
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} |
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} |
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let __storageProvieder: ICustomBrowserStorageProvider; |
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function getBrowserApi(): BrowserApi { |
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if (typeof chrome !== 'undefined') { |
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if (typeof browser !== 'undefined') { |
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return BrowserApi.Firefox; |
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} |
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return BrowserApi.Chromium; |
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} |
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else if (typeof browser !== 'undefined') { |
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return BrowserApi.Firefox; |
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} |
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return BrowserApi.Unknown; |
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} |
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function createStorageProvider() { |
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let api = getBrowserApi(); |
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// chromium |
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if (api === BrowserApi.Chromium) { |
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__storageProvieder = new StorageProviderChromium(); |
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} |
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// firefox |
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else if (api === BrowserApi.Firefox) { |
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__storageProvieder = new StorageProviderFirefox(); |
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} |
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else { |
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throw "Unknown browser API. Cannot create storage provider."; |
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} |
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} |
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export function getGlobalStorageProvider(): ICustomBrowserStorageProvider { |
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if (!assigned(__storageProvieder)) { |
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createStorageProvider(); |
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} |
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return __storageProvieder; |
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} |